科普專欄–薯不揀單 - 深入淺出–腋下異味的來源

如果測量一個人的細胞數量，事實上只有25%是屬於人體細胞，其餘的75%均由細菌及真菌所據。2038Please respect copyright.ＰＥＮＡＮＡhTd4QvNPDt
2038Please respect copyright.ＰＥＮＡＮＡhWo0hxFiHQ
細菌及真菌可以說是「無處不在」，它們不但寄宿於我們的皮膚外層，亦同時駐紮在我們身體內的腸道及各器官部位，與我們成呈共生關係。2038Please respect copyright.ＰＥＮＡＮＡmKB4wYRTI1
2038Please respect copyright.ＰＥＮＡＮＡWOHJyW2Bfq
最近有科學家發表學術文章（Ref1)，講述位於汗腺附近的細菌就是腋下異味的其中一個元兇。2038Please respect copyright.ＰＥＮＡＮＡpyldTaEmgz
2038Please respect copyright.ＰＥＮＡＮＡDuMawVYdcj
2038Please respect copyright.ＰＥＮＡＮＡOSNRG7ur2g
（圖1）我們身體的肝腺大致分為兩種，外分泌汗腺(Eccrine Sweat Glands)及大汗腺2038Please respect copyright.ＰＥＮＡＮＡ2C1OwWOoZA
(Apocrine Sweat Glands)2038Please respect copyright.ＰＥＮＡＮＡ2ynN8uJOzn
2038Please respect copyright.ＰＥＮＡＮＡkSvQpkZJki
前者接近遍佈全身，不與毛髮連接。後者主要位於腋下、乳頭及私處部位，與毛髮連接。2038Please respect copyright.ＰＥＮＡＮＡxjxkggjQb6
2038Please respect copyright.ＰＥＮＡＮＡk5cKvHGKWf
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。2038Please respect copyright.ＰＥＮＡＮＡnPaYWhrQnu
2038Please respect copyright.ＰＥＮＡＮＡ8YUuqxSYP3
而大汗腺的主要功能，到目前為止仍未能搞得清楚。2038Please respect copyright.ＰＥＮＡＮＡfgeyG41RX6
2038Please respect copyright.ＰＥＮＡＮＡggyBFaqzgd
2038Please respect copyright.ＰＥＮＡＮＡE2GKeZo6Sr
2038Please respect copyright.ＰＥＮＡＮＡdwkC8Trw6O
（圖2）下列三點為文中所找出的異味散發機制。2038Please respect copyright.ＰＥＮＡＮＡ9VGzosZw0H
2038Please respect copyright.ＰＥＮＡＮＡuvHLGliaD8
1.大汗腺釋出無味物質Cys-Gly-3M3SH。2038Please respect copyright.ＰＥＮＡＮＡZqV8758Gw3
2038Please respect copyright.ＰＥＮＡＮＡE1rGaJORMF
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。2038Please respect copyright.ＰＥＮＡＮＡrpzi9qY0E2
2038Please respect copyright.ＰＥＮＡＮＡdEoiAg54AH
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。2038Please respect copyright.ＰＥＮＡＮＡkd66lQC5hR
2038Please respect copyright.ＰＥＮＡＮＡ6ziVI7Z6O9
換句話說，腋下的異味就是由這些細菌引致而成的。2038Please respect copyright.ＰＥＮＡＮＡhD4lLGpeNE
2038Please respect copyright.ＰＥＮＡＮＡfOMKCXMSZo
2038Please respect copyright.ＰＥＮＡＮＡpsBq6LqNRg
2038Please respect copyright.ＰＥＮＡＮＡEEIxAMbc1x
（圖3）為作進一步的證實，科學家利用黃金葡萄球菌作對照實驗。2038Please respect copyright.ＰＥＮＡＮＡlrVCtziL8J
2038Please respect copyright.ＰＥＮＡＮＡl7luZoEFCE
他們發現人葡萄球菌的近親黃金葡萄球菌並沒能夠將無味的Cys-Gly-3M3SH消化成為帶有異味的3M3SH。2038Please respect copyright.ＰＥＮＡＮＡvMlMcUGJKw
但是，當把人葡萄球菌其中一隻酵素轉移到黃金葡萄球菌後，無味的Cys-Gly-3M3SH便能夠被消化成為帶有異味的3M3SH，證實異味是由那隻酵素所致。2038Please respect copyright.ＰＥＮＡＮＡAW3qQXdunv
2038Please respect copyright.ＰＥＮＡＮＡSIIleGZzG5
這隻酵素一直以來並沒有被前人發現，亦即是說，只要能夠研發出抑制那隻酵素的止汗劑的話，腋下的大部份異味亦能得以除去；2038Please respect copyright.ＰＥＮＡＮＡ1MyEjG4JD1
2038Please respect copyright.ＰＥＮＡＮＡUQafMBtOp7
異味的產生，基本上是由硫醇（Thioalcohol)及脂肪酸(Fatty acid)而成。此文章所談及的機制純屬與硫醇的產生有關，沒有觸及脂肪酸那一方面。2038Please respect copyright.ＰＥＮＡＮＡKmmBOmmFgA
2038Please respect copyright.ＰＥＮＡＮＡBThn0tkK8D
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。2038Please respect copyright.ＰＥＮＡＮＡeNGVygXTfP
2038Please respect copyright.ＰＥＮＡＮＡGtOaP7s63M
2038Please respect copyright.ＰＥＮＡＮＡPG4X03xLLf
如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。2038Please respect copyright.ＰＥＮＡＮＡLSCMy54TcN
2038Please respect copyright.ＰＥＮＡＮＡXAaDH1yqYe
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc2038Please respect copyright.ＰＥＮＡＮＡuDTY2HdUpQ
2038Please respect copyright.ＰＥＮＡＮＡKOLYT1mqp4
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。2038Please respect copyright.ＰＥＮＡＮＡDiVOPHL4H0
2038Please respect copyright.ＰＥＮＡＮＡx8Q9ahFd36
Link:2038Please respect copyright.ＰＥＮＡＮＡRTRHwaf8wg
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio2038Please respect copyright.ＰＥＮＡＮＡZA5ZLOZ7lG
2038Please respect copyright.ＰＥＮＡＮＡyOgDNHttkf
2038Please respect copyright.ＰＥＮＡＮＡONWGWpbnRg
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。2038Please respect copyright.ＰＥＮＡＮＡo3mWNtPMPc
2038Please respect copyright.ＰＥＮＡＮＡr4qUGnHjDi
Ref1:https://www.nature.com/articles/s41598-020-68860-z2038Please respect copyright.ＰＥＮＡＮＡF4BeJ23vTf

ns216.73.216.246da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章